CAT5114W-50 [CATALYST]
50K DIGITAL POTENTIOMETER, INCREMENT/DECREMENT CONTROL INTERFACE, 32 POSITIONS, PDSO8, LEAD AND HALOGEN FREE, SOIC-8;
| 型号： | CAT5114W-50 |
| 厂家： | 
CATALYST SEMICONDUCTOR |
| 描述： | 50K DIGITAL POTENTIOMETER, INCREMENT/DECREMENT CONTROL INTERFACE, 32 POSITIONS, PDSO8, LEAD AND HALOGEN FREE, SOIC-8 光电二极管 |
| 文件： | 总9页 (文件大小：110K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
E
CAT5114
32-Tap Digitally Programmable Potentiometer (DPP™)
TM
FEATURES
APPLICATIONS
■ 32-position linear taper potentiometer
■ Non-volatile EEPROM wiper storage
■ 10nA ultra-low standby current
■ Automated product calibration
■ Remote control adjustments
■ Offset, gain and zero control
■ Tamper-proof calibrations
■ Single supply operation: 2.5V-6.0V
■ Increment Up/Down serial interface
■ Resistance values: 10kΩ, 50kΩ and 100kΩ
■ Available in PDIP, SOIC, TSSOP and MSOP packages
■ Contrast, brightness and volume controls
■ Motor controls and feedback systems
■ Programmable analog functions
DESCRIPTION
new system values without effecting the stored
setting. Wiper-control of the CAT5114 is
accomplished with three input control pins, CS, U/D,
and INC. The INC input increments the wiper in the
direction which is determined by the logic state of
the U/D input. The CS input is used to select the
device and also store the wiper position prior to
power down.
The CAT5114 is a single digitally programmable
potentiometer (DPP™) designed as a electronic
replacement for mechanical potentiometers and trim
pots. Ideal for automated adjustments on high volume
production lines, they are also well suited for
applications where equipment requiring periodic
adjustment is either difficult to access or located in a
hazardous or remote environment.
The digitally programmable potentiometer can be
used as a three-terminal resistive divider or as a
two-terminalvariableresistor.DPPsbringvariabilityand
programmability to a wide variety of applications
including control, parameter adjustments, and
signal processing.
The CAT5114 contains a 32-tap series resistor array
connected between two terminals RH and RL. An up/
down counter and decoder that are controlled by three
input pins, determines which tap is connected to the
wiper, RW. The wiper setting, stored in nonvolatile
memory, is not lost when the device is powered
down and is automatically reinstated when power
is returned. The wiper can be adjusted to test
FUNCTIONAL DIAGRAM
RH /VH
31
30
Vcc (Supply Voltage)
U/D
INC
CS
VH /RH
5-BIT
UP/DOWN
COUNTER
RH /VH
29
28
UP/DOWN
(U/D)
5-BIT
NONVOLATILE
MEMORY
ONE
OF
Control
and
Memory
INCREMENT
THIRTY TWO
DECODER
R
/
VW
TRANSFER
GATES
RESISTOR
ARRAY
W
RW/VW
(INC)
DEVICE SELECT
2
1
0
(CS)
RL /VL
POR
STORE AND
RECALL
CONTROL
CIRCUITRY
Vcc
V
SS
GND
VL / RL
RL /VL
RW/VW
ELECTRONIC POTENTIOMETER
IMPLEMENTATION
GENERAL
DETAILED
© 2003 by Catalyst Semiconductor, Inc.
Doc. No. 2007, Rev. G
1
Characteristics subject to change without notice
CAT5114
PIN CONFIGURATION
DIP Package (P, L)
PIN FUNCTIONS
TSSOP Package (U, Y)
Pin Name
Function
1
2
3
4
8
7
6
5
1
2
3
4
8
7
6
5
RL
CS
V
INC
Increment Control
Up/Down Control
INC
CC
V
CC
RW
CS
U/D
U/D
GND
RH
R
H
INC
R
L
GND
R
W
U/D
R
H
Potentiometer High Terminal
Ground
GND
SOIC Package (S, W)
MSOP Package (R, Z)
R
R
Potentiometer Wiper Terminal
Potentiometer Low Terminal
Chip Select
W
L
1
2
3
4
8
7
6
5
1
2
3
4
8
7
6
5
V
INC
U/D
RH
VCC
CS
RL
INC
CC
CS
U/D
R
H
R
L
CS
GND
R
W
GND
RW
VCC
Supply Voltage
PIN DESCRIPTIONS
INC: Increment Control Input
of the CAT5114 and is active low. When in a high
state, activity on the INC and U/D inputs will not
affect or change the position of the wiper.
TheINCinputmovesthewiperintheupordowndirection
determined by the condition of the U/D input.
U/D: Up/Down Control Input
DEVICE OPERATION
The U/D input controls the direction of the wiper
movement. When in a high state andCS is low, any high-
to-low transition on INC will cause the wiper to move one
increment toward the RH terminal. When in a low state
and CS is low, any high-to-low transition on INC will
cause the wiper to move one increment towards the
RL terminal.
The CAT5114 operates like a digitally controlled
potentiometer with RH and RL equivalent to the high
and low terminals and RW equivalent to the mechanical
potentiometer's wiper. There are 32 available tap posi-
tions including the resistor end points, RH and RL. There
are 31 resistor elements connected in series between
the RH and RL terminals. The wiper terminal is
connected to one of the 32 taps and controlled by three
inputs, INC, U/D and CS. These inputs control a five-bit
up/down counter whose output is decoded to select the
wiper position. The selected wiper position can be
stored in nonvolatile memory using the INC and
CS inputs.
RH: High End Potentiometer Terminal
RH is the high end terminal of the potentiometer. It is not
required that this terminal be connected to a potential
greater than the RL terminal. Voltage applied to the RH
terminal cannot exceed the supply voltage, VCC or go
below ground, GND.
With CS set LOW the CAT5114 is selected and will
respond to the U/D and INC inputs. HIGH to LOW
transitions on INC wil increment or decrement the
wiper (depending on the state of the U/D input and five-
bit counter). The wiper, when at either fixed terminal,
acts like its mechanical equivalent and does not move
beyond the last position. The value of the counter is
stored in nonvolatile memory whenever CS transitions
HIGH while the INC input is also HIGH. When the
CAT5114ispowered-down,thelaststoredwipercounter
position is maintained in the nonvolatile memory. When
power is restored, the contents of the memory are
recalled and the counter is set to the value stored.
RW: Wiper Potentiometer Terminal
RW is the wiper terminal of the potentiometer. Its position
ontheresistorarrayiscontrolledbythecontrol inputs,INC,
U/D and CS. Voltage applied to the RW terminal cannot
exceedthesupplyvoltage, VCC orgobelowground, GND.
RL: Low End Potentiometer Terminal
RL is the low end terminal of the potentiometer. It is not
required that this terminal be connected to a potential
less than the RH terminal. Voltage applied to the RL
terminal cannot exceed the supply voltage, VCC or go
below ground, GND. RL and RH are electrically
interchangeable.
With INC set low, the CAT5114 may be de-selected
and powered down without storing the current wiper
position in nonvolatile memory. This allows the
system to always power up to a preset value stored
in nonvolatile memory.
CS: Chip Select
The chip select input is used to activate the control input
Doc. No. 2007, Rev. G
2
CAT5114
OPERATION MODES
R
H
INC
High to Low
High to Low
High
CS
U/D
High
Low
X
Operation
Wiper toward H
C
H
R
wi
Low
Low
R
W
Wiper toward L
C
W
Low to High
Low to High
High
Store Wiper Position
No Store, Return to Standby
Standby
Low
X
C
Potentiometer
Equivalent Circuit
L
X
X
R
L
Operating Ambient Temperature
ABSOLUTE MAXIMUM RATINGS
Commercial (‘C’ or Blank suffix) ...... 0°C to +70°C
Industrial (‘I’ suffix)...................... – 40°C to +85°C
Junction Temperature ..................................... +150°C
Storage Temperature ....................... –65°C to +150°C
Lead Soldering (10 sec max) .......................... +300°C
Supply Voltage
VCC to GND ...................................... –0.5V to +7V
Inputs
CS to GND .............................–0.5V to VCC +0.5V
INC to GND ............................–0.5V to VCC +0.5V
U/D to GND ............................–0.5V to VCC +0.5V
HtoGND ................................–0.5V to VCC +0.5V
L to GND ................................–0.5V to VCC +0.5V
W to GND ...............................–0.5V to VCC +0.5V
* Stresses above those listed under Absolute Maximum Ratings may
cause permanent damage to the device. Absolute Maximum Ratings
are limited values applied individually while other parameters are
within specified operating conditions, and functional operation at any
of these conditions is NOT implied. Device performance and reliability
maybeimpairedbyexposuretoabsoluteratingconditionsforextended
periods of time.
RELIABILITY CHARACTERISTICS
Symbol
Parameter
Test Method
Min
Typ
Max
Units
(1)
VZAP
ESD Susceptibility
Latch-Up
MIL-STD-883, Test Method 3015
JEDEC Standard 17
2000
100
Volts
mA
(1)(2)
ILTH
TDR
Data Retention
Endurance
MIL-STD-883, Test Method 1008
100
Years
Stores
NEND
MIL-STD-883, Test Method 1003 1,000,000
DC Electrical Characteristics: VCC = +2.5V to +6.0V unless otherwise specified
Power Supply
Symbol Parameter
Conditions
Min
2.5
Typ
Max
6.0
Units
V
VCC
ICC1
Operating Voltage Range
Supply Current (Increment)
VCC = 6V, f = 1MHz, IW=0
100
50
µA
VCC = 6V, f = 250kHz, IW=0
ICC2
Supply Current (Write)
Programming, VCC = 6V
VCC = 3V
1
mA
500
µA
(2)
ISB1
Supply Current (Standby)
CS=VCC-0.3V
0.01
1
µA
U/D, INC=VCC-0.3V or GND
Logic Inputs
Symbol Parameter
Conditions
Min
Typ
Max
Units
IIH
Input Leakage Current
VIN = VCC
10
–10
µA
µA
V
IIL
Input Leakage Current
VIN = 0V
VIH1
VIL1
VIH2
VIL2
TTL High Level Input Voltage
TTL Low Level Input Voltage
CMOS High Level Input Voltage
CMOS Low Level Input Voltage
4.5V ≤ VCC ≤ 5.5V
2
0
VCC
0.8
V
2.5V ≤ VCC ≤ 6V
VCC x 0.7
-0.3
VCC + 0.3
VCC x 0.2
V
V
NOTES: (1) This parameter is tested initially and after a design or process change that affects the parameter.
(2) Latch-up protection is provided for stresses up to 100mA on address and data pins from –1V to VCC + 1V
(3) IW=source or sink
(4) These parameters are periodically sampled and are not 100% tested.
Doc. No. 2007, Rev. G
3
CAT5114
Potentiometer Parameters
Symbol
Parameter
Conditions
Min
Typ
Max Units
RPOT
Potentiometer Resistance
-10 Device
-50 Device
-00 Device
10
50
kΩ
100
Pot Resistance Tolerance
Voltage on RH pin
±15
VCC
VCC
%
V
VRH
VRL
0
0
Voltage on RL pin
Resolution
V
3.2
%
INL
DNL
RWi
Integral Linearity Error
Differential Linearity Error
Wiper Resistance
I
I
W ≤ 2µA
W ≤ 2µA
0.5
1
LSB
LSB
0.25
0.5
VCC = 5V, IW = 1mA
VCC = 2.5V, IW = 1mA
400
1
Ω
kΩ
IW
TCRPOT
TCRATIO
RISO
Wiper Current
1
mA
ppm/oC
ppm/oC
Ω
TC of Pot Resistance
Ratiometric TC
300
20
Isolation Resistance
Noise
TBD
8/24
8/8/25
1.7
VN
100kHz / 1kHz
nV/√Hz
pF
CH/CL/CW
fc
Potentiometer Capacitances
Frequency Response
Passive Attenuator, 10kΩ
MHz
Doc. No. 2007, Rev. G
4
CAT5114
AC CONDITIONS OF TEST
Range
V
2.5V ≤ V
≤ 6V
CC
CC
Input Pulse Levels
0.2V to 0.7V
CC CC
Input Rise and Fall Times
Input Reference Levels
10ns
0.5V
CC
AC OPERATING CHARACTERISTICS:
VCC = +2.5V to +6.0V, VH = VCC, VL = 0V, unless otherwise specified
Symbol Parameter Min
Typ(1)
Max
Units
tCI
CS to INC Setup
100
50
ns
ns
tDI
U/D to INC Setup
tID
U/D to INC Hold
100
250
250
1
ns
tIL
INC LOW Period
ns
tIH
INC HIGH Period
ns
tIC
INC Inactive to CS Inactive
CS Deselect Time (NO STORE)
CS Deselect Time (STORE)
INC to VOUT Change
INC Cycle Time
µs
tCPH
tCPH
tIW
tCYC
100
10
ns
ms
µs
1
5
5
1
µs
(2)
tR, F
t
INC Input Rise and Fall Time
Power-up to Wiper Stable
Store Cycle
500
1
µs
(2)
tPU
msec
ms
tWR
10
A. C. TIMING
CS
(store)
tCYC
tIC
tCPH
tCI
tIL
tIH
90%
90%
INC
10%
tID
tDI
tR
tF
U/D
(3)
tIW
MI
R
W
o
(1) Typical values are for T =25 C and nominal supply voltage.
A
(2) This parameter is periodically sampled and not 100% tested.
(3) MI in the A.C. Timing diagram refers to the minimum incremental change in the W output due to a change in the wiper position.
Doc. No. 2007, Rev. G
5
APPLICATIONS INFORMATION
Potentiometer Configurations
(a) resistive divider
(b) variable resistance
(c) two-port
Applications
A
3
2
1
R
+
–
R
4
V
(-)
+5V
3
1
1
+5V
8
R
R
R
R
A
1
+5V
6
3
+5V
A
2
1
7
3
U/
DPP
U/
9
4
8
4
{
–
+
}
}
pR
POT
7
6
R
2
2
V
O
3
5
8
R
5
1
(1-p)R
POT
10
11
R
4
555
B
2
6
5
A
{
2
CAT5114/5113
R
R
4
–
+
3
+2.5V
7
V
2
(+)
2
1
C
.01 F
.01 F,
.003 F
Programmable Instrumentation Amplifier
Programmable Sq. Wave Oscillator (555)
IC3A
1/4 74HC132
6
–
1.00V = V
REF
7
5
+
OSC
20k
ICIB
+5V
+200mV
10k
U/D
INC
CS
499k
499k
499k
V
CORR
0.01 F
+
–
+5V
CS
2
4
–
V
= 1V + 1mV
SHIFT
OUT
1
+
Sensor
11
3
-5V
ICIA
100mV = V
CAT5112/5111
IC2
499k
1V + 50mV
V
SENSR
Sensor Auto Referencing Circuit
Doc. No. 2007, Rev. G
6
APPLICATIONS INFORMATION
100k
+5V
8
2
1
U/
CAT5114/5113
7
V
V
(REG)
OUT
0
4
R1
11k
2952
6.8
F
V
(UNREG)
pR (1-p)R
IN
330
330
1M
1.23V
.1
SHUTDOWN
SD
GND
FB
6
3
5
+5V
+5V
1
F
R2
820
–
–
7
10k
7
2
3
2
3
6
6
V
+5V
8
O
A1
A2
4
4
+
+
3
I
S
R3
2
1
7
U/
5
10k
Control
and
Memory
LT1097
+2.5V
6
POR
4
CAT5114/5113
Programmable Voltage Regulator
Programmable I to V convertor
R1
100k
CAT5112/5111
+5V
R3
100k
C1
.001
+5V
R1
100k
+5V
+5V
–
R
2.5k
V
I
S
2
3
R1
50k
S
–
1
F
4
1
C2
Serial
Bus
+
R1
2
3
7
4
V
11
–
+
+2.5V
S
6
100k
V
O
.001
+5V
+
R1
100k
A1
+
5
R2
10k
7
–
6
A2
+2.5V
A1=A2=1/4 LMC6064A
+2.5V
CAT5114/5113
Programmable Bandpass Filter
Programmable Current Source/Sink
+5V
IC1
393
IC2
74HC132
R
1
V
LL
2
3
–
1
OSC
+
CLO
R
2
6
5
–
R
3
7
10k
+
+5V
0.1 F
V
UL
CHI
IC3
+5V
CAT5114/5113
+5V
8
6
2
U/D
1
INC
–
10k
7
5
V
CS
4
O
+
3
AI
IC4
2.5V < V < 5V
O
V
+2.5V
S
0 < V < 2.5V
S
Automatic Gain Control
Doc. No. 2007, Rev. G
7
CAT5114
ORDERING INFORMATION
Prefix
Device #
5112
Suffix
S
-10
CAT
I
TE13
Product Number
5112: Buffered
5114: Unbuffered
Resistance
Optional
Company ID
Tape & Reel
TE13: 2000/Reel
-10: 10kohms
-50: 50kohms
-00: 100kohms
Package
P: PDIP
S: SOIC
U: TSSOP
R: MSOP
L: PDIP (Lead free, Halogen free)
W: SOIC (Lead free, Halogen free)
Y: TSSOP (Lead free, Halogen free)
Z: MSOP (Lead free, Halogen free)
Notes:
(1) The device used in the above example is a CAT5114 SI-10TE13 (SOIC, 10K Ohms, Industrial Temperature, Tape & Reel)
REVISION HISTORY
Date
Rev.
Reason
10/9/2003
G
Revised Features
Revised DC Electrical Characteristics
Doc. No. 2007, Rev. G
8
CAT5114
Copyrights, Trademarks and Patents
Trademarks and registered trademarks of Catalyst Semiconductor include each of the following:
DPP ™
AE2 ™
Catalyst Semiconductor has been issued U.S. and foreign patents and has patent applications pending that protect its products. For a complete list of patents
issued to Catalyst Semiconductor contact the Company’s corporate office at 408.542.1000.
CATALYST SEMICONDUCTOR MAKES NO WARRANTY, REPRESENTATION OR GUARANTEE, EXPRESS OR IMPLIED, REGARDING THE SUITABILITY OF ITS
PRODUCTS FOR ANY PARTICULAR PURPOSE, NOR THAT THE USE OF ITS PRODUCTS WILL NOT INFRINGE ITS INTELLECTUAL PROPERTY RIGHTS OR THE
RIGHTS OF THIRD PARTIES WITH RESPECT TO ANY PARTICULAR USE OR APPLICATION AND SPECIFICALLY DISCLAIMS ANY AND ALL LIABILITY ARISING
OUT OF ANY SUCH USE OR APPLICATION, INCLUDING BUT NOT LIMITED TO, CONSEQUENTIAL OR INCIDENTAL DAMAGES.
Catalyst Semiconductor products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or
other applications intended to support or sustain life, or for any other application in which the failure of the Catalyst Semiconductor product could create a
situation where personal injury or death may occur.
Catalyst Semiconductor reserves the right to make changes to or discontinue any product or service described herein without notice. Products with data sheets
labeled "Advance Information" or "Preliminary" and other products described herein may not be in production or offered for sale.
Catalyst Semiconductor advises customers to obtain the current version of the relevant product information before placing orders. Circuit diagrams illustrate
typical semiconductor applications and may not be complete.
Catalyst Semiconductor, Inc.
Corporate Headquarters
1250 Borregas Avenue
Sunnyvale, CA 94089
Phone: 408.542.1000
Fax: 408.542.1200
www.catsemi.com
Publication #: 2007
Revison:
Issue date:
Type:
G
10/9/03
Final
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